Energy efficiency

Energy Efficiency

Energy efficiency (/ˈɛnərdʒi ɪˈfɪʃənsi/) refers to the method of reducing the amount of energy required to provide products and services. It is a significant aspect of sustainability and environmental science, as it helps to minimize the use of natural resources and reduce greenhouse gas emissions.

Etymology

The term "energy efficiency" is derived from the words "energy", which comes from the Greek word "energeia" meaning activity or operation, and "efficiency", which originates from the Latin word "efficientia" meaning to accomplish.

Related Terms

Energy Conservation: This is the practice of decreasing the quantity of energy used while achieving a similar outcome of end-use. It is a part of the concept of eco-sufficiency.

Energy Audit: An energy audit is an inspection, survey, and analysis of energy flows for energy conservation in a building, process, or system to reduce the amount of energy input into the system without negatively affecting the output(s).

Energy Management: This is the proactive, organized and systematic coordination of procurement, conversion, distribution, and use of energy to meet the requirements, taking into account environmental and economic objectives.

Energy Recovery: Energy recovery includes any technique or method of minimizing the input of energy to an overall system by the exchange of energy from one sub-system of the overall system with another.

Energy Intensity: Energy intensity is a measure of the energy inefficiency of an economy. It is calculated as units of energy per unit of GDP.

Energy Footprint: An energy footprint refers to the amount of energy a process, person, organization, or country uses.

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Energy efficiency